https://example.com/ Recent content on Iulian Mocanu Hugo -- gohugo.io en Mon, 27 May 2024 00:00:00 +0000 https://example.com/post/aws-devops-terraform/ Mon, 27 May 2024 00:00:00 +0000 https://example.com/post/aws-devops-terraform/ <h1 id="aws-devops-infrastructure-as-code-with-terraform">AWS DevOps: Infrastructure as Code with Terraform</h1> <p>This project deploys a Docker application on AWS, utilizing services such as VPC, EC2, ECS, Secrets Manager, and CloudWatch. Infrastructure is managed with Terraform (version 1.7.1), while CI/CD is implemented using CodeBuild and CodePipeline, focusing on security and scalability. The OCI image repository is Docker Hub, and I aimed to implement most of the AWS best practices.</p> https://example.com/post/k8s-nodejs-fullstack/ Mon, 20 May 2024 00:00:00 +0000 https://example.com/post/k8s-nodejs-fullstack/ <h2 id="description-of-kubernetes-resources">Description of Kubernetes Resources</h2> <h3 id="database">Database</h3> <ul> <li><strong>Deployment (<code>database</code>)</strong>: Deploys PostgreSQL (<code>postgres:14</code> image) database with initialization from <code>init.sql</code> using a <code>ConfigMap</code>. It mounts <code>database-volume-claim</code> for persistent storage of PostgreSQL data.</li> <li><strong>Service (<code>database-service</code>)</strong>: Provides a stable endpoint (<code>database.development.svc.cluster.local</code>) for accessing the PostgresSQL database (<code>postgres</code> Deployment) internally within the Kubernetes cluster.</li> <li><strong>ConfigMap (<code>database-init</code>)</strong>: Contains <code>init.sql</code> script that initializes the database schema (<code>users</code> table) upon PostgreSQL container startup.</li> <li><strong>Secret (<code>database-secret</code>)</strong>: Stores sensitive information such as PostgreSQL credentials (<code>POSTGRES_USER</code>, <code>POSTGRES_PASSWORD</code>, <code>POSTGRES_DB</code>) encoded in base64.</li> <li><strong>PersistentVolume</strong>: Provides storage for PostgreSQL data.​</li> <li><strong>PersistentVolumeClaim (<code>database-volume-claim</code>)</strong>: Requests persistent storage for storing PostgreSQL data (<code>/var/lib/postgresql/data</code>).</li> </ul> <h3 id="backend">Backend</h3> <ul> <li><strong>Deployment (<code>backend</code>)</strong>: Manages the backend application (<code>backend:dev</code> image) responsible for serving requests from the web browser and interacting with the database. It pulls PostgreSQL credentials from <code>database-secret</code> for database connectivity.</li> <li><strong>Service (<code>backend-service</code>)</strong>: Provides a stable endpoint (<code>backend.development.svc.cluster.local</code>) for accessing the backend application (<code>backend</code> Deployment) internally within the Kubernetes cluster.</li> <li><strong>ConfigMap (<code>backend-config</code>)</strong>: Contains the value of database service endpoint <code>database.development.svc.cluster.local</code>.</li> </ul> <h3 id="frontend">Frontend</h3> <ul> <li><strong>Deployment (<code>frontend</code>)</strong>: Manages the frontend application (using the <code>frontend:dev</code> image) which is responsible for serving requests from the web browser and interacting with the backend application. The frontend retrieves the URL of the backend API from a ConfigMap named <code>frontend-config</code>.</li> <li><strong>Service (<code>frontend-service</code>)</strong>: Provides a stable endpoint (<code>frontend.development.svc.cluster.local</code>) for accessing the frontend application (<code>frontend</code> Deployment) internally within the Kubernetes cluster.</li> <li><strong>ConfigMap (<code>backend-config</code>)</strong>: Contains the value of backend api url <code>http://backend.development.svc.cluster.local:3000/api/users</code>.</li> </ul> <h2 id="network-flow-description">Network Flow Description</h2> <p>The network flow from the web browser to the database application via the backend application in Kubernetes involves the following steps:</p> https://example.com/awards/ Sun, 10 Apr 2022 00:00:00 +0000 https://example.com/awards/ Hugo Awards, an annual literary award for the best science fiction or fantasy works https://example.com/post/simple-estimate-app/ Sat, 10 Oct 2020 00:00:00 +0000 https://example.com/post/simple-estimate-app/ <p>Simple Estimate is a desktop application developed in Python using the Tkinter framework. The application allows users to create quotes and estimates for construction projects in a simple and intuitive way.</p> https://example.com/archives/ Tue, 28 May 2019 00:00:00 +0000 https://example.com/archives/ https://example.com/contact/ Fri, 08 Mar 2019 00:00:00 +0000 https://example.com/contact/ Contact Page https://example.com/imprint/ Mon, 01 Jan 0001 00:00:00 +0000 https://example.com/imprint/ <h1 id="legal-disclosure">Legal Disclosure</h1> <p>Information in accordance with the applicable law</p> <p>Iulian Mocanu<br> Anatole Street 10<br> 2016 GoHugo<br> Germany</p> https://example.com/certifications/ Mon, 01 Jan 0001 00:00:00 +0000 https://example.com/certifications/ My certifications